LMR14203XMK/NOPB LMR14203XMKX/NOPB Power Regulator IC Switching Voltage Regulators SIMPLE SWITCHER 42 Vin,0.3A SD
digital voltage regulator ic
,electronic voltage regulator circuit
LMR14203XMK/NOPB LMR14203XMKX/NO Power Regulator IC Switching Voltage Regulators SIMPLE SWITCHER 42 Vin,0.3A SD Vltg Reg
FEATURES
- Input Voltage Range of 4.5V to 42V
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Output Voltage Range of 0.765V to 34V
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Output Current up to 0.3A
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1.25 MHz Switching Frequency
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Low Shutdown Iq, 16 μA Typical
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Short Circuit Protected
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Internally Compensated
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Soft-Start Function
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Thin SOT-23-6 Package (2.97 x 1.65 x 1mm)
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Fully Enabled for WEBENCH® Power Designer
PERFORMANCE BENEFITS
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Tight Accuracy for Powering Digital ICs
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Extremely Easy to Use
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Tiny Overall Solution Reduces System Cost
APPLICATIONS
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Point-of-Load Conversions from 5V, 12V, and 24V Rails
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Space Constrained Applications
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Battery Powered Equipment
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Industrial Distributed Power Applications
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Power Meters
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Portable Hand-Held Instruments
DESCRIPTION
The LMR14203 is a PWM DC/DC buck (step-down) regulator. With a wide input range from 4.5V-42V, it is suitable for a wide range of applications such as power conditioning from unregulated sources. They feature a low RDSON (0.9Ω typical) internal switch for maximum efficiency (85% typical). Operating frequency is fixed at 1.25 MHz allowing the use of small external components while still being able to have low output voltage ripple. Soft-start can be implemented using the shutdown pin with an external RC circuit allowing the user to tailor the soft-start time to a specific application.
The LMR14203 is optimized for up to 300 mA load current.
Additional features include: thermal shutdown, VIN under-voltage lockout, and gate drive under-voltage lockout. The LMR14203 is available in a low profile SOT-6L package.
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